Samsung SM-G975F Service Manual page 130

8. Level 3 Repair
8-4-42. DCS1800/PCS1900 Tx
Check component soldering status OK at
Check component soldering status OK at
Check component soldering status OK at
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Check C1078
: About 0dBm ?
YES
PAM1001 ?
YES
Check C1071
: About 33dBm ?
YES
U1005 ?
YES
Check C1050
: About 33dBm ?
YES
F1000 ?
YES
Check L1004
: About 33dBm ?
YES
Check RFS100
: About 33dBm ?
YES
ANT is O.K?
YES
END
NO
Resolder or change
U3000 or C1078 or C1087 or C1079
NO
Resolder or change
PAM1001
NO
Resolder or change
C1073 or C1071 or C1072
NO
Resolder or change
U1005
NO
Resolder or change
C1050
NO
Resolder or change
F1000
NO
Resolder or change
L1004 or C1013 or C1010 or L1006
NO
Resolder or change
RFS100
NO
Change
Coaxial cable or mechanical material